The Shellfish Staff is a Hardmode summon weapon that drops from Giant Clams. It summons a Shellfish which follows the player and attacks nearby enemies by attaching itself to them. Each Shellfish takes up 2 minion slots. Shellfish only deal direct damage when initially latching onto an enemy. From there, it inflicts the Shellfish Claps debuff for as long as it remains attached to the enemy. This debuff deals a total of 35 damage per second for every shellfish attached to an enemy. Up to a max of 5 shellfish can cling to an enemy, causing 175 damage every second.
Its best modifier is Mythical, as most of the damage of it comes from the Shellfish Claps debuff, which is not affected by any source of damage increases or reductions.
- The Shellfish Staff can additionally be obtained from Sunken Crates at a 20% drop chance in Hardmode after the Giant Clam has been defeated.
- If an enemy's defense value is higher than 9999, the Shellfish Claps debuff will have no effect.
- The Shellfish Claps debuff ticks twice as fast as most other debuffs: 10 times per second instead of 5.